Then they can be further recrystallized to biphenyl with a purity of over 99.9 %.进一步用溶剂结晶法去除了联苯中的杂质,获得99.9%以上联苯.Methods A new synthesis route for felbinac preparation was studied with biphenyl under ultrasound.方法:以联苯为原料,...
I firmly believe our strategy is being deliberately, cynically manipulated.我坚信我们的策略正在被人存心恶意操纵。The manipulated do not understand them; the manipulators fear them.受人摆布者不理解他们, 摆布别人者害怕他们.The police force is being manipulated...